3 3 x3 2 July 8, 2019 16 32 64 128 3 3x3 3 2 3 2 x 3 2 x3 2 X 3 )( x3 2x2 3 3 3x3 3 21 X3 3 2x2 3 4x 1 8 3 x 3 x 3 x 3 x 3 3 x 3 x 3 = 9
